Our sofa cover/loveseat cover and chair cover are made of form-fitting stretch fabric. Easy to put on and very conformable to sit on. This sofa slipcover comes in one piece which goes over the whole chair, perfect to your sofa/loveseat and chair from etc. So they are good to you. This sofa covers not only your furniture ensuring it lasts for years to come but also add luxurious new look or refresh your existing home decoration. Sofa size between: Small Size Back Length 35-51 inches （90-130 cm) Approx. Medium Size Back Length 53-67 inches (135-170 cm) Approx. Large Size Back Length 69-86 inches (175-220 cm) Approx. X-Large Size Back Length 88-114 inches (225-290 cm) Approx. 1 Free cushion cover size: 17 to 17 Inch( without the pillow inner). 2. Normally, slipcover size should be slightly larger than the sofa size. How to install:Steps 1: Position the slipcover over the sofa with the label at the back. Steps 2: Pull the fabric evenly over the sofa, and push white sponge cylinders in spaces between the cushions, shaping the cover to the sofa and keeping the fabric tight. Steps 3: Tilt the sofa up and find elastic ties. Pull the front and back ties together tightly and tie. Pull the side ties together and tightly. Steps 4: Put the sofa down and pull cover tight, pulling any excess fabric to the back. Steps 5: Enjoy your newly covered sofa!